15 Black Cat Street, Northampton, NN5 4EF

UPRN:15110321Purpose Built Flat2 bedsBuilt 2003-2006

FreeholdCouncil Tax: Band DEPC: C (78)

Data freshness:Price Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 1mo agoArea· Census 2021

15 Black Cat Street, Northampton, NN5 4EF

HP Score

/ 100

Mixed

Verdict

today

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

20 of 21 sources

Sale Estimate

£185,000

£175k - £194kHigh

Estimate

£185k

Range

£175k – £194k

Rent Estimate (pcm)

£950

£900 - £1k

Monthly

£950

Yield

6.00%

Verdict

Derived from HomePortfolio scores

15 Black Cat Street earns an INVESTIGATE rating with HP Score 69/100. Investment score 58/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is limited (60/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesEPC RegisterPortal listingsOfcom Connected NationsOfcom mobile coverageMarket estimates (third-party AVM)HM Land Registry sales matched to addressDefra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS Census 2021Police.ukHM Land Registry company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

69/ 100

Mixed

Investment Score

58/ 100

Moderate

Crime Score

41/ 100

Elevated

Walkability

60/ 100

Moderate

Transit & Bike

Transit 9Bike 57

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 30 Oct 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM -2.7% (HIGH), sold-comps -9.2%, £/sqft -9.3%] → measured edge +0.00pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 15110321· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.5%· as of 1 Nov 2026
Rental economics7.9/40
gross yield 6.0%; range width penalty ×0.99
- valuation_snapshotsrent estimate 950/mo (range 900-1000)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -233/mo, -25% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 30 Oct 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 314 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 30 Oct 2026
Risk & liquidity14.6/15
499 sales/12mo in area; valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£142,500£218,500

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£190,000

At the asking price

Monthly rent£950/mo

Evidenced range £900-£1,000

Interest rate5.4%

Loan to value75%

Cash required: £59,600
Net cash flow: £16/mo
Cash on cash: 0.3%
Score at this price: 22

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.48 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 15110321Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.5%Valuation edge · as of 1 Nov 2026
valuation_snapshotsrent estimate 950/mo (range 900-1000)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 30 Oct 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 30 Oct 2026

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 950/mo (range 900-1000)
Stress margin needs verification before you rely on it
costs not disclosed by the advert

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£185,000

Rent Estimate (pcm)£950

Gross Yield6.00%

1y Growth-

3y Growth+2.4%

5y Growth+1.9%

10y Growth+3.3%

Last Sold Price£190,000 (2023-01-18)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningUnknown
LandslideLow
Air QualityLow
NoiseBelow 40 dB

View Full Risk Report

Planning Activity

Recent Apps

0NN5 4EF

Approval Rate

-12mo

Development

low

2026/3932/PA
Determination as to whether prior approval is required (under Schedule 2, Part 14, Class J of the above Order) for installation of 111KWp roof mounted solar system
Pending
2026/2970/LDP
Lawful development certificate (proposed) for installation of a garden room.
Approved
2026/2330/HH
Loft conversion with Velux windows
Pending

View Planning Timeline

Ownership

Corporate Ownership69.7%
Overseas OwnershipNo
Lease Term Remaining129 yrs
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2023-01-18
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

11 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£33,059

Population Density875 /km²

Owner Occupied62%

Age Distribution

0-15 29%16-64 68%65+ 3%

View Area Profile

Schools Nearby

Upton Meadows Primary School
0.2 mi
Good
Quinton House School
0.6 mi
Inspected by ISI
Millway Primary School
0.6 mi
Good
Pineham Barns Primary School
0.8 mi
Report card2026
Ofsted no longer awards a single overall grade.

3 of 12 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

5 Black Cat Street
-
£151k
-
27 Black Cat Street
-
£213k
-
15 Black Cat Street
-
£190k
-
5 Black Cat Street
-
£178k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN